lola27l
lola27l
07-01-2016
Mathematics
contestada
what are the solutions to x^2-13x+30
Respuesta :
kasperov1993
kasperov1993
07-01-2016
[tex]ax^2+bx+c=0 \\ \\ x^2-13x+30 = 0 \\ \\ D=b^2-4ac = 169-120=\sqrt{49} =7 \\ \\ x_{1/2} = \frac{-b^2+/-\sqrt{D}}{2a} = \frac{13+/-7}{2*1} \\ \\ x_1 = \frac{13+7}{2} = 10 \\ \\ x_2 = \frac{13-7}{2} = 3[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 47+ )
Otras preguntas
Find a1 if Sn = 89,800, r = 3.4, and n = 10. Round to the nearest hundredth if necessary.
Asexually reproducing organisms lack mechanisms for generating genetic diversity within a population.
The probability that a randomly selected 5-year-old male horned beetle will live to be 6 years old is 0.25624. (a) What is the probability that two randomly
Below are three statements. Classify them as examples of independent orientation, crossing over, or random fertilization. I: The formation of a zygote from an e
A = (0,5, 10, 15) B = (-4,2,0,7,10) Find the union of A and B
Select the correct answer from each drop-down menu. A system of equations and its solution are given below.
Ribosomes are composed of rRNA and what other component? protein carbohydrates DNA mRNA
who factored 12x^7 correctly?
What was the main idea of the Great Gatsby.. explain ?
Frederick Griffith infected mice with a combination of dead R and live S bacterial strains. What was the outcome, and why did it occur? The mice will live. Tran
